1、ASHRAE STANDARDANSI/ASHRAE Standard 37-2009(Supersedes ANSI/ASHRAE Standard 37-2005)Methods of Testing for Rating Electrically Driven Unitary Air-Conditioning and Heat Pump EquipmentApproved by the ASHRAE Standards Committee on June 20, 2009; by the ASHRAE Board of Directors onJune 24, 2009; and by
2、the American National Standards Institute on June 25, 2009. ASHRAE Standards are scheduled to be updated on a five-year cycle; the date following the standard numberis the year of ASHRAE Board of Directors approval. The latest copies may be purchased from ASHRAE Cus-tomer Service, 1791 Tullie Circle
3、, NE, Atlanta, GA 30329-2305. E-mail: ordersashrae.org. Fax: 404-321-5478. Telephone: 404-636-8400 (worldwide) or toll free 1-800-527-4723 (for orders in US and Canada). Copyright 2009 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.ISSN 1041-2336American Society of He
4、ating, Refrigeratingand Air-Conditioning Engineers, Inc.1791 Tullie Circle NE, Atlanta, GA 30329www.ashrae.orgASHRAE STANDARDS COMMITTEE 20082009Hugh F. Crowther, ChairSteven T. Bushby, Vice-ChairRobert G. BakerMichael F. BedaDonald L. BrandtPaul W. CabotKenneth W. CooperSamuel D. Cummings, Jr.K. Wi
5、lliam DeanMartin DieryckxRobert G. DoerrAllan B. FraserNadar R. JayaramanByron W. JonesJay A. KohlerCarol E. MarriottMerle F. McBrideFrank MyersH. Michael NewmanJanice C. PetersonDouglas T. ReindlLawrence J. SchoenBoggarm S. SettyBodh R. SubherwalWilliam F. WalterMichael W. WoodfordDavid E. Knebel,
6、BOD ExOAndrew K. Persily, COStephanie Reiniche, Manager of StandardsSPECIAL NOTEThis American National Standard (ANS) is a national voluntary consensus standard developed under the auspices of the AmericanSociety of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). Consensus is defined
7、 by the American National StandardsInstitute (ANSI), of which ASHRAE is a member and which has approved this standard as an ANS, as “substantial agreement reached bydirectly and materially affected interest categories. This signifies the concurrence of more than a simple majority, but not necessaril
8、y unanimity.Consensus requires that all views and objections be considered, and that an effort be made toward their resolution.” Compliance with thisstandard is voluntary until and unless a legal jurisdiction makes compliance mandatory through legislation.ASHRAE obtains consensus through participati
9、on of its national and international members, associated societies, and public review.ASHRAE Standards are prepared by a Project Committee appointed specifically for the purpose of writing the Standard. The ProjectCommittee Chair and Vice-Chair must be members of ASHRAE; while other committee member
10、s may or may not be ASHRAE members, allmust be technically qualified in the subject area of the Standard. Every effort is made to balance the concerned interests on all ProjectCommittees. The Assistant Director of Technology for Standards and Special Projects of ASHRAE should be contacted for:a. int
11、erpretation of the contents of this Standard,b. participation in the next review of the Standard,c. offering constructive criticism for improving the Standard, ord. permission to reprint portions of the Standard.DISCLAIMERASHRAE uses its best efforts to promulgate Standards and Guidelines for the be
12、nefit of the public in light of available information andaccepted industry practices. However, ASHRAE does not guarantee, certify, or assure the safety or performance of any products, components,or systems tested, installed, or operated in accordance with ASHRAEs Standards or Guidelines or that any
13、tests conducted under itsStandards or Guidelines will be nonhazardous or free from risk.ASHRAE INDUSTRIAL ADVERTISING POLICY ON STANDARDSASHRAE Standards and Guidelines are established to assist industry and the public by offering a uniform method of testing for ratingpurposes, by suggesting safe pr
14、actices in designing and installing equipment, by providing proper definitions of this equipment, and by providingother information that may serve to guide the industry. The creation of ASHRAE Standards and Guidelines is determined by the need for them,and conformance to them is completely voluntary
15、.In referring to this Standard or Guideline and in marking of equipment and in advertising, no claim shall be made, either stated or implied,that the product has been approved by ASHRAE.ASHRAE Standard Project Committee 37 Cognizant TC: TC 8.11, Unitary and Room Air Conditioners and Heat PumpsSPLS L
16、iaison: Matt R. HarganAlberto A. da Rosa, Chair*Greg S. BennettDarryl Denton*Piotr A. DomanskiBrian P. Dougherty*Byron F. Horak*H. Michael Hughes*Birol I. Kilkis*Arvo Lannus*Denotes members of voting status when the document was approved for publicationCONTENTSANSI/ASHRAE Standard 37-2009Methods of
17、Testing for Rating Electrically DrivenUnitary Air-Conditioning and Heat Pump EquipmentSECTION PAGEForeword. 21 Purpose 22 Scope . 23 Definitions. 24 Classifications. 25 Instruments. 36 Airflow and Air Differential Pressure Measurement Apparatus. 37 Methods of Testing and Calculation 98 Test Procedur
18、es 189 Data to be Recorded 2210 Test Results 2411 Symbols used in Equations 2512 Reference Properties and Data 2713 References . 27Informative Appendix A:Classifications of Unitary Air Conditioners and Heat Pumps 28NOTEWhen addenda, interpretations, or errata to this standard have been approved, the
19、y can be downloaded free of charge from the ASHRAE Web site at http:/www.ashrae.org. Copyright 2009 American Society of Heating,Refrigerating and Air-Conditioning Engineers, Inc.1791 Tullie Circle NEAtlanta, GA 30329www.ashrae.orgAll rights reserved. 2009, American Society of Heating, Refrigerating
20、and Air-Conditioning Engineers, Inc. (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.2 ANSI/ASHRAE Standard 37-2009(This foreword is not part of this standard. It
21、 is merelyinformative and does not contain requirements necessaryfor conformance to the standard. It has not been pro-cessed according to the ANSI requirements for a stan-dard and may contain material that has not been subjectto public review or a consensus process. Unresolvedobjectors on informativ
22、e material are not offered theright to appeal at ASHRAE or ANSI.)FOREWORDThis is a revision of Standard 37-2005. This standard wasprepared under the auspices of the American Heating Refrig-erating and Air-Conditioning Engineers (ASHRAE). It may beused, in whole or in part, by an association or gover
23、nmentagency with due credit to ASHRAE. Adherence is strictly on avoluntary basis and merely in the interests of obtaining uni-form standards throughout the industry. This version updatesthe references section, superscripts references cited in the textand corrects the erratum in section 7.7.2.1.1. PU
24、RPOSE1.1 The purpose of this standard is to provide test methodsfor determining the cooling capacity of unitary air-condition-ing equipment and the cooling or heating capacities, or both,of unitary heat pump equipment.1.2 These test methods do not specify methods of establish-ing ratings that involv
25、e factors such as manufacturing toler-ances and quality control procedures.2. SCOPE2.1 This standard applies to electrically driven mechani-cal-compression unitary air conditioners and heat pumps con-sisting of one or more assemblies that include an indoor aircoil(s), a compressor(s), and an outdoor
26、 coil(s). Where suchequipment is provided in more than one assembly, the sepa-rated assemblies are designed to be used together.2.2 This standard does not include methods of testing thefollowing:(a) cooling coils for separate use(b) condensing units for separate use(c) room air conditioners(d) heat-
27、operated unitary equipment(e) liquid chilling packages(f) multiple indoor air coils operating simultaneously in heat-ing and cooling modes3. DEFINITIONSair, standard: dry air having a mass density of 1.204 kg/m3(0.075lb/ft3).apparatus: as used in this standard, this term refers exclu-sively to test
28、room facilities and instrumentation.capacity, heating: the rate, expressed in watts (Btu/h), atwhich the equipment adds heat to the air passing through itunder specified conditions of operation.capacity, latent cooling: the rate, expressed in watts (Btu/h),at which the equipment removes latent heat
29、from the air pass-ing through it under specified conditions of operation.capacity, sensible cooling: the rate, expressed in watts (Btu/h),at which the equipment removes sensible heat from the airpassing through it under specified conditions of operation.capacity, total cooling: the rate, expressed i
30、n watts (Btu/h), atwhich the equipment removes heat from the air passingthrough it under specified conditions of operation.coil, indoor: the heat exchanger that removes heat from oradds heat to the conditioned space.coil, outdoor: the heat exchanger that rejects heat to or absorbsheat from a source
31、external to the conditioned space.equipment: as used in this standard, this term refers exclu-sively to the unitary equipment to be tested.equipment, unitary: this term shall be defined as provided inSection 2 and Section 4.indoor side: that part of the system that removes heat from oradds heat to t
32、he indoor airstream.outdoor side: that part of the system that rejects heat to orabsorbs heat from a source external to the indoor airstream.pressure, standard barometric: 101.325 kPa (14.696 psi).refrigerant, volatile: a refrigerant that changes from the liquidto the vapor state in the process of a
33、bsorbing heat.shall: where “shall” or “shall not” is used for a provision, thatprovision is mandatory if compliance with the standard isclaimed.should, recommended, or it is recommended: “should,”“recommended,” or “it is recommended” are used to indicateprovisions that are not mandatory but that are
34、 desirable as agood practice.4. CLASSIFICATIONSUnitary equipment within the scope of this standard maybe classified as follows: 4.1 Component Arrangement:(a) Units employing compressor(s), indoor air coil(s), andoutdoor coil(s) in a single package assembly.(b) Units employing compressor(s) and indoo
35、r coil(s) in oneor more assemblies with remote outdoor coil(s).(c) Units employing indoor coil assemblies, with outdoorcoil(s) and compressor(s) in one or more assemblies.ANSI/ASHRAE Standard 37-2009 34.2 Method of Outdoor Coil Heat Exchange:(a) air,(b) liquid, and(c) evaporative cooled condensing.N
36、ote: Related Air-Conditioning and Refrigeration Institute(ARI) classifications for unitary air conditioners and heatpumps are given in Tables A-1 and A-2, respectively, inAppendix A, and are illustrative but not restrictive.5. INSTRUMENTS5.1 Temperature Measuring Instruments5.1.1 All temperature mea
37、surements (with the exceptionof dew point temperature) shall be made in accordance withANSI/ASHRAE Standard 41.1.15.1.2 If used in determining the water vapor content of theair, dew point hygrometers shall be applied as specified inANSI/ASHRAE Standard 41.62and shall be accurate towithin 0.2C (0.4F)
38、.5.1.3 Inlet air temperature measurements are to be takenupstream of static pressure taps on the inlet duct (if installed).Outlet air temperature measurements shall be taken down-stream of the static pressure taps on the outlet.5.2 Refrigerant, Liquid, and Barometric Pressure Mea-suring Instruments5
39、.2.1 Pressure measurements shall be made with one ormore of the following instruments:(a) liquid column(b) Bourdon tube gauge(c) electronic pressure transducerASHRAE Standard 41.33should be referred to for infor-mation on the above instruments.5.2.2 The accuracy of the pressure measuring instruments
40、shall permit measurements to within 2.5% of the reading.5.2.3 Calibration of the pressure measuring instrumentshall be with respect to a deadweight tester or by comparisonwith a liquid column.5.2.4 In no case shall the smallest scale division of thepressure measuring instrument exceed two times the
41、specifiedaccuracy.5.3 Air Differential Pressure and Airflow Measurements5.3.1 The static pressure difference across nozzles andvelocity pressures at nozzle throats shall be measured withmanometers or electronic pressure transducers that have beencalibrated against a pressure standard to within 1.0%
42、of thereading. The resolution of the device shall be equal to or lessthan 2.0% of the reading.5.3.2 Duct static pressure shall be measured with one ormore manometers or electronic pressure transducers that areaccurate to within 2.5 Pa (0.01 in. H2O).5.3.3 Areas of nozzles shall be determined by meas
43、uringtheir diameters to within 0.20% in four places approxi-mately equally spaced around the nozzle in each of two planesthrough the nozzle throat, one at the outlet and the other in thestraight section near the radius.5.4 Electrical Instruments5.4.1 Electrical measurements shall be made with indica
44、t-ing or integrating instruments.5.4.2 Instruments used for measuring the electrical powerinput to fan motors, compressor motors, or other equipmentaccessories shall be accurate to within 2.0% of the reading.Note: For an efficiency rating purpose, a more accurate mea-surement of the electrical power
45、 input may be required.5.4.3 Instruments used for measuring the electrical powerinput to heaters or other apparatus furnishing heat loads (see7.7.1.2 and Figure 10) shall be accurate to within 1.0% of thequantity measured.5.4.4 Voltages shall be measured at the equipment termi-nals. Instruments used
46、 for measuring voltage shall be accurateto within 1.0% of the reading.5.5 Volatile Refrigerant Flow Measurement5.5.1 Volatile refrigerant flow shall be measured with anintegrating flow measuring system that is accurate to within1.0% of the reading.5.6 Liquid Flow Measurement5.6.1 Water and brine flo
47、w rates shall be measured with aliquid flow meter or quantity meter that is accurate to within1.0% of the reading.5.6.2 Condensate collection rates shall be determinedusing a liquid quantity meter that is accurate to within 1.0%of the reading.5.7 Speed Measuring Instruments5.7.1 Speed measurements s
48、hall be made with a revolu-tion counter, tachometer, stroboscope, or oscilloscope that isaccurate to within 1.0% of the reading.5.8 Time and Mass Measurements5.8.1 Time interval measurements shall be made with aninstrument that is accurate to within 0.2% of the reading.5.8.2 Mass measurements shall
49、be made with an appara-tus that is accurate to within 1.0% of the reading.5.9 Volatile refrigerant mass composition measurements forzeotropic refrigerants shall be made using an instrument thatis in accordance with ARI Standard 700-95.46. AIRFLOW AND AIR DIFFERENTIALPRESSURE MEASUREMENT APPARATUS6.1 Enthalpy Apparatus. Recommended configurationsfor the test apparatus are provided below. In all cases, suitablemeans for determining the dry-bulb temperature and watervapor content of the air entering and leaving the unit and formeasuring the external resistance to airflow
